CA2298485A1 - Diaphragm for hygienic protection of a medical stethoscope - Google Patents
Diaphragm for hygienic protection of a medical stethoscope Download PDFInfo
- Publication number
- CA2298485A1 CA2298485A1 CA002298485A CA2298485A CA2298485A1 CA 2298485 A1 CA2298485 A1 CA 2298485A1 CA 002298485 A CA002298485 A CA 002298485A CA 2298485 A CA2298485 A CA 2298485A CA 2298485 A1 CA2298485 A1 CA 2298485A1
- Authority
- CA
- Canada
- Prior art keywords
- diaphragm
- mould
- latex
- diameter
- hem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Acoustics & Sound (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Moulding By Coating Moulds (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention concerns a diaphragm for the hygienic protection of a stethoscope formed by a thin and flexible latex or rubber cap, provided with a gripping hem (28) at its periphery. The diaphragm (26) has substantially the same diameter as the auscultation attachment to be protected. A ring-shaped cavity (30) is provided between the hem (28) and the back wall (32) facilitating the symmetrical adaptation of the diaphragm (26) on the attachment peripheral edge. The assembly is arranged so that the hem (28) matches perfectly the edge outline without the need for stretching and elastic deformation by drawing when said diaphragm (26) is set in place.
Description
DIAPHRAGM FOR HYGIENIC PROTECTION OF A MEDICAL STETHOSCOPE
BACKGROUND OF THE INVENTION
The invention relates to a diaphragm for hygienic protection designed to be fitted on an auscultation head of a medical stethoscope, said diaphragm being formed by a thin, flexible latex or rubber cap, having a rolled gripping hem at its periphery to facilitate fitting and replacement after use.
STATE OF THE TECHNIQUE
The document FR-A-2,734,704 refers to an adhesive protection system.
Manufacture of such a device requires implementation of two materials, and its application does not enable the whole of the stethoscope membrane to be covered.
The document US-A-5,365,023 describes a flexible latex cap, with a rim member at its periphery, and covering the whole of the surface of the membrane and of the vascular cone. The diameter of the cap is much small than that of the membrane, which requires the latex to be tensed following elastic deformation by stretching when it is fitted. The rim member extehds up to the base of the head and remains away from the cylindrical peripheral edge.
The document EP-A-471,553 relates to a manufacturing process of a male contraceptive sheath, in which a cylindrical mould is plunged into a recipient filled with liquid latex, having previously been coated with an adhesive coating.
After it has been removed from the mould, the contraceptive sheath is dried in a drying oven for a predetermined period.
SUMMARY OF THE INVENTION
A first object of the invention is to achieve a diaphragm for hygienic protection for a stethoscope, which is easy to fit, and is used once only or can be reused after sterilisation.
The diaphragm according to the invention is characterized in that:
AMENDED SHEET
BACKGROUND OF THE INVENTION
The invention relates to a diaphragm for hygienic protection designed to be fitted on an auscultation head of a medical stethoscope, said diaphragm being formed by a thin, flexible latex or rubber cap, having a rolled gripping hem at its periphery to facilitate fitting and replacement after use.
STATE OF THE TECHNIQUE
The document FR-A-2,734,704 refers to an adhesive protection system.
Manufacture of such a device requires implementation of two materials, and its application does not enable the whole of the stethoscope membrane to be covered.
The document US-A-5,365,023 describes a flexible latex cap, with a rim member at its periphery, and covering the whole of the surface of the membrane and of the vascular cone. The diameter of the cap is much small than that of the membrane, which requires the latex to be tensed following elastic deformation by stretching when it is fitted. The rim member extehds up to the base of the head and remains away from the cylindrical peripheral edge.
The document EP-A-471,553 relates to a manufacturing process of a male contraceptive sheath, in which a cylindrical mould is plunged into a recipient filled with liquid latex, having previously been coated with an adhesive coating.
After it has been removed from the mould, the contraceptive sheath is dried in a drying oven for a predetermined period.
SUMMARY OF THE INVENTION
A first object of the invention is to achieve a diaphragm for hygienic protection for a stethoscope, which is easy to fit, and is used once only or can be reused after sterilisation.
The diaphragm according to the invention is characterized in that:
AMENDED SHEET
- the diaphragm presents appreciably the same diameter as the auscultation head to be protected, - an annular cavity is provided between the rolled hem and the back wall facilitating symrrietrical fitting of the diaphragm on the peripheral edge of the head, - the assembly being arranged so that the rolled hem follows the outline of said edge perfectly without requiring tensing and elastic deformation by stretching when said diaphragm is fitted.
According to one feature of the invention, the diameter of the cavity is slightly greater than the internal diameter of the rolled hem.
The presence of such a new or sterilised diaphragm on the membrane or the vascular cone of a stethoscope prevents any propagation of germs between patients.
The diaphragm could even replace the membrane completely, thus creating a new generation of stethoscopes with interchangeable membranes.
The diaphragm can naturally present other dimensions so as to be able to be fitted on all types of stethoscopes (children, adults).
Packaging of these diaphragms can be of two types:
- either in bulk in a storage box without individual packaging, - or sterile in an individual covering or sealed bag.
The small thickness of the cap and its perfect application without clearance on the surface of the head do not affect acoustic transmission to the listening device.
A second object of the invention consists in developing a simple manufacturing process by moulding of the diaphragm for hygienic protection of a stethoscope.
This process is characterized by the following stages:
- dipping the cylindrical-shaped mould in a coagulant bath, in particular calcium nitride based, designed to foster adhesion of the latex to the wall of the mould, - plunging the mould into a recipient filled with liquid latex, then removing and drying the mould coated with a layer of latex, - rolling the upper cylindrical end of the latex layer on itself by hand in the direction of the fjack wall to obtain the rolled hem, - removing the diaphragm from the mould after rinsing with hot water, - and drying the diaphragm in a drying oven for a preset time.
A colouring agent is incorporated in the liquid latex before the mould is inserted in the recipient.
A third object of the invention relates to a device for implementation of the manufacturing process. It comprises a dipping mould with a cylindrical imprint corresponding to the diameter of the diaphragm, the bottom end of the mould comprising:
- an annular groove for holding the rolled edge of the rolled hem, - a rounded peripheral boss extending the groove axially up to a cylindrical end washer to obtain said annular cavity.
The diameter of the washer is slightly greater than the diameter of the mould.
BRIEF DESCRIPTION OF THE DRAWINGS
Other advantages and features will become more clearly apparent from the following description of an illustrative embodiment of the invention, given as a non-restrictive example only and represented in the accompanying drawings, in which - figure 1 is a schematic view of a stethoscope equipped with a protective diaphragm on each auscultation head;
- figure 2 shows a cross-sectional view of a diaphragm according to the invention;
- figure 3 is a plan view of figure 2;
- figure 4 represents the moulding device by dipping for manufacture of the diaphragm;
According to one feature of the invention, the diameter of the cavity is slightly greater than the internal diameter of the rolled hem.
The presence of such a new or sterilised diaphragm on the membrane or the vascular cone of a stethoscope prevents any propagation of germs between patients.
The diaphragm could even replace the membrane completely, thus creating a new generation of stethoscopes with interchangeable membranes.
The diaphragm can naturally present other dimensions so as to be able to be fitted on all types of stethoscopes (children, adults).
Packaging of these diaphragms can be of two types:
- either in bulk in a storage box without individual packaging, - or sterile in an individual covering or sealed bag.
The small thickness of the cap and its perfect application without clearance on the surface of the head do not affect acoustic transmission to the listening device.
A second object of the invention consists in developing a simple manufacturing process by moulding of the diaphragm for hygienic protection of a stethoscope.
This process is characterized by the following stages:
- dipping the cylindrical-shaped mould in a coagulant bath, in particular calcium nitride based, designed to foster adhesion of the latex to the wall of the mould, - plunging the mould into a recipient filled with liquid latex, then removing and drying the mould coated with a layer of latex, - rolling the upper cylindrical end of the latex layer on itself by hand in the direction of the fjack wall to obtain the rolled hem, - removing the diaphragm from the mould after rinsing with hot water, - and drying the diaphragm in a drying oven for a preset time.
A colouring agent is incorporated in the liquid latex before the mould is inserted in the recipient.
A third object of the invention relates to a device for implementation of the manufacturing process. It comprises a dipping mould with a cylindrical imprint corresponding to the diameter of the diaphragm, the bottom end of the mould comprising:
- an annular groove for holding the rolled edge of the rolled hem, - a rounded peripheral boss extending the groove axially up to a cylindrical end washer to obtain said annular cavity.
The diameter of the washer is slightly greater than the diameter of the mould.
BRIEF DESCRIPTION OF THE DRAWINGS
Other advantages and features will become more clearly apparent from the following description of an illustrative embodiment of the invention, given as a non-restrictive example only and represented in the accompanying drawings, in which - figure 1 is a schematic view of a stethoscope equipped with a protective diaphragm on each auscultation head;
- figure 2 shows a cross-sectional view of a diaphragm according to the invention;
- figure 3 is a plan view of figure 2;
- figure 4 represents the moulding device by dipping for manufacture of the diaphragm;
- figures 5 to 7 show schematic views of the different phases of manufacture of the diaphragm.
DESCRIPTION OF A PREFERRED EMBODIMENT
With reference to figure 1, a medical stethoscope 10 comprises a first auscultation head 12 and a second auscultation head 14 arranged at the opposite ends of a central body 16, which is provided with an output end-piece to which the flexible tube 19 of the audio listening system (not represented) is connected.
The first auscultation head 12 is formed for example by a frustum-shaped base made of metallic material, equipped with a flat membrane 20 made of plastic material. The diameter of the membrane 20 is greater than that of the vascular cone 22 constituting the second auscultation head 14. A two-channel selector is provided in the body 16 to make the output end-piece 18 communicate with one of the auscultation heads 12, 14.
To prevent transmission of germs between patients, in particular in the presence of nosocomial infections, each auscultation head 12, 14 of the stethoscope can be covered by a protective diaphragm which is used once only or can be resterilised.
In figures 2 and 3, the diaphragm 26 is formed by a cap or disk made of thin flexible rubber having a rolled gripping hem 28 at its periphery for ease of fitting and replacement after use. The diaphragm 26 can present different dimensions according to the types of stethoscopes. The dimensions of the diaphragm 26 of the vascular cone 22 are naturally small than those of the membrane 20 of the first auscultation head 12.
According to the invention, the diaphragm 26 presents appreciably the same diameter as the membrane 20 of the head 12, and the rolled hem 28 follows the shape of the cylindrical edge exactly without requiring tensing and deformation by stretching when fitting thereof is performed. An annular cavity 30 is arranged between the rolled hem 28 and the back wall 32 for ease of symmetrical fitting of the diaphragm 26 on the peripheral edge of the head 12. The diameter of the 5 cavity 30 is comprised between the internal diameter and the external diameter of the rolled hem 28.
The back wall 32 is perfectly tight and flexible and can be used as advertising support means. Direct contact of the diaphragm with the patient's skin moreover prevents any cold sensation when an auscultation examination is performed.
Packaging of the diaphragms 26 can be performed in different manners, either in bulk in a storage box without individual packaging or sterile inside a sealed individual cover. ' Manufacture of the diaphragms 26 is performed by means of the forming device 34 of figure 4. The forming device 34 comprises a dipping mould 36 of cylindrical shape attached by fixing means 37 to a support plate 38 which is movable in the vertical direction indicated by the arrow F1. The bottom end of the mould 36 comprises an annular groove 40 for holding the rolled edge constituting the rolled hem 28. The groove 40 is extended axially by a peripheral boss 42 of rounded shape and an end washer 44 of cylindrical shape.
The arrangement of the boss 42 and washer 44 enables the annular cavity 30 between the rolled hem 28 and the back wall 32 to be obtained when moulding takes place. The mould 36 is dipped into a recipient 46 filled with liquid latex 48.
The height of the dipping mould 36 is about 100 mm, whereas the diameter of the washer 44 is 2 mm larger than that of the mould 36. For the diaphragm 26 of the first head 12, the diameter of the mould 36 is 38 mm. For that of the second head 14, the diameter of the mould 36 is 18 mm.
The manufacturing process of a diaphragm 26 is performed in the following manner:
In a first phase, the mould 36 is first of all dipped into a calcium nitride based coagulant bath designed fo foster adhesion of the latex to the wall of the mould 36. The mould 36 is then dried in a drying oven for a short time, about 5 minutes.
In the second phase, the mould 36 is plunged into the recipient 46 of natural liquid latex 48 to a predetermined depth of about 80 mm. After the horizontal support plate 38 has been removed, the cylindrical mould 36 is coated with a latex layer 50 (figure 5) which adheres to the wall due to the presence of the coagulant. The assembly is then placed in the oven for drying and setting of the latex. The drying time is about 5 minutes and the thickness of the latex layer is comprised between 0.35 and 0.45 mm.
In a third phase, the upper cylindrical end of the latex layer 50 is rolled on itself by hand (arrow F2, figure 6) in the vertical direction until it reaches the groove 40 so as to obtain the rolled hem 28 (figure 7).
In a fourth and final phase, rinsing in hot water is performed followed by drying in an oven for about 30 minutes. Finally talc is applied to the diaphragm 26 which is then removed from the mould 36 and placed in the oven for final drying for about 1 hour. The diaphragm represented in figure 2 is thus obtained.
The natural liquid latex 48 can naturally be replaced by a mixture of latex and silicon, known under the trademark of SILATEX. A colourina aaent can be introduced into the liquid latex 48 so as to obtain diaphragms with different colourings. Any other elastomeric material can be used for manufacture of these diaphragms.
The diaphragm 26 can be usable once only and is then thrown away after each auscultation examination. The diaphragm can also be resterilisable by treatment in an autoclave, or by radiation, or by dipping in a disinfectant solution.
DESCRIPTION OF A PREFERRED EMBODIMENT
With reference to figure 1, a medical stethoscope 10 comprises a first auscultation head 12 and a second auscultation head 14 arranged at the opposite ends of a central body 16, which is provided with an output end-piece to which the flexible tube 19 of the audio listening system (not represented) is connected.
The first auscultation head 12 is formed for example by a frustum-shaped base made of metallic material, equipped with a flat membrane 20 made of plastic material. The diameter of the membrane 20 is greater than that of the vascular cone 22 constituting the second auscultation head 14. A two-channel selector is provided in the body 16 to make the output end-piece 18 communicate with one of the auscultation heads 12, 14.
To prevent transmission of germs between patients, in particular in the presence of nosocomial infections, each auscultation head 12, 14 of the stethoscope can be covered by a protective diaphragm which is used once only or can be resterilised.
In figures 2 and 3, the diaphragm 26 is formed by a cap or disk made of thin flexible rubber having a rolled gripping hem 28 at its periphery for ease of fitting and replacement after use. The diaphragm 26 can present different dimensions according to the types of stethoscopes. The dimensions of the diaphragm 26 of the vascular cone 22 are naturally small than those of the membrane 20 of the first auscultation head 12.
According to the invention, the diaphragm 26 presents appreciably the same diameter as the membrane 20 of the head 12, and the rolled hem 28 follows the shape of the cylindrical edge exactly without requiring tensing and deformation by stretching when fitting thereof is performed. An annular cavity 30 is arranged between the rolled hem 28 and the back wall 32 for ease of symmetrical fitting of the diaphragm 26 on the peripheral edge of the head 12. The diameter of the 5 cavity 30 is comprised between the internal diameter and the external diameter of the rolled hem 28.
The back wall 32 is perfectly tight and flexible and can be used as advertising support means. Direct contact of the diaphragm with the patient's skin moreover prevents any cold sensation when an auscultation examination is performed.
Packaging of the diaphragms 26 can be performed in different manners, either in bulk in a storage box without individual packaging or sterile inside a sealed individual cover. ' Manufacture of the diaphragms 26 is performed by means of the forming device 34 of figure 4. The forming device 34 comprises a dipping mould 36 of cylindrical shape attached by fixing means 37 to a support plate 38 which is movable in the vertical direction indicated by the arrow F1. The bottom end of the mould 36 comprises an annular groove 40 for holding the rolled edge constituting the rolled hem 28. The groove 40 is extended axially by a peripheral boss 42 of rounded shape and an end washer 44 of cylindrical shape.
The arrangement of the boss 42 and washer 44 enables the annular cavity 30 between the rolled hem 28 and the back wall 32 to be obtained when moulding takes place. The mould 36 is dipped into a recipient 46 filled with liquid latex 48.
The height of the dipping mould 36 is about 100 mm, whereas the diameter of the washer 44 is 2 mm larger than that of the mould 36. For the diaphragm 26 of the first head 12, the diameter of the mould 36 is 38 mm. For that of the second head 14, the diameter of the mould 36 is 18 mm.
The manufacturing process of a diaphragm 26 is performed in the following manner:
In a first phase, the mould 36 is first of all dipped into a calcium nitride based coagulant bath designed fo foster adhesion of the latex to the wall of the mould 36. The mould 36 is then dried in a drying oven for a short time, about 5 minutes.
In the second phase, the mould 36 is plunged into the recipient 46 of natural liquid latex 48 to a predetermined depth of about 80 mm. After the horizontal support plate 38 has been removed, the cylindrical mould 36 is coated with a latex layer 50 (figure 5) which adheres to the wall due to the presence of the coagulant. The assembly is then placed in the oven for drying and setting of the latex. The drying time is about 5 minutes and the thickness of the latex layer is comprised between 0.35 and 0.45 mm.
In a third phase, the upper cylindrical end of the latex layer 50 is rolled on itself by hand (arrow F2, figure 6) in the vertical direction until it reaches the groove 40 so as to obtain the rolled hem 28 (figure 7).
In a fourth and final phase, rinsing in hot water is performed followed by drying in an oven for about 30 minutes. Finally talc is applied to the diaphragm 26 which is then removed from the mould 36 and placed in the oven for final drying for about 1 hour. The diaphragm represented in figure 2 is thus obtained.
The natural liquid latex 48 can naturally be replaced by a mixture of latex and silicon, known under the trademark of SILATEX. A colourina aaent can be introduced into the liquid latex 48 so as to obtain diaphragms with different colourings. Any other elastomeric material can be used for manufacture of these diaphragms.
The diaphragm 26 can be usable once only and is then thrown away after each auscultation examination. The diaphragm can also be resterilisable by treatment in an autoclave, or by radiation, or by dipping in a disinfectant solution.
Claims (6)
1. A diaphragm for hygienic protection designed to be fitted on an auscultation head (12, 14) of a medical stethoscope (10), said diaphragm (26) being formed by a thin, flexible latex or rubber cap, having a gripping rolled hem (28) at its periphery to facilitate fitting and replacement after use, characterized in that:
- the diaphragm (26) presents appreciably the same diameter as the auscultation head (12, 14) of the stethoscope (10) to be protected, - an annular cavity (30) is provided between the rolled hem (28) and the back wall (32) facilitating symmetrical fitting of the diaphragm (26) on the peripheral edge of the head (12, 14) of the stethoscope (10), - the assembly being arranged so that the rolled hem (28) follows the outline of said edge perfectly without requiring tensing and elastic deformation by stretching when said diaphragm (26) is fitted.
- the diaphragm (26) presents appreciably the same diameter as the auscultation head (12, 14) of the stethoscope (10) to be protected, - an annular cavity (30) is provided between the rolled hem (28) and the back wall (32) facilitating symmetrical fitting of the diaphragm (26) on the peripheral edge of the head (12, 14) of the stethoscope (10), - the assembly being arranged so that the rolled hem (28) follows the outline of said edge perfectly without requiring tensing and elastic deformation by stretching when said diaphragm (26) is fitted.
2. The diaphragm for hygienic protection according to claim 1, characterized in that the diameter of the cavity (30) is slightly greater than the internal diameter of the rolled hem (28).
3. A manufacturing process by moulding of a latex diaphragm for a stethoscope according to one of the claims 1 or 2, consisting in plunging a cylindrical mould into a recipient (46) filled with liquid latex (48), and after removal from the mould, of drying the diaphragm (26) in an oven for a predetermined time, characterized by the following successive stages:
- in a first phase taking place before plunging into the liquid latex, dipping the mould (36) in a coagulant bath, in particular calcium nitride based, designed to foster adhesion of the latex to the wall of the mould (36), - in a second phase, removing the mould after it has been plunged into the recipient (46), and drying the mould (36) coated with a layer of latex (50), - in a third phase, rolling the upper cylindrical end of the layer of latex (50) on itself by hand in the direction of the back wall (32) to obtain the rolled hem (28), - in a fourth phase, removing the diaphragm (26) from the mould after rinsing with hot water, followed by drying the drying operation in the oven.
- in a first phase taking place before plunging into the liquid latex, dipping the mould (36) in a coagulant bath, in particular calcium nitride based, designed to foster adhesion of the latex to the wall of the mould (36), - in a second phase, removing the mould after it has been plunged into the recipient (46), and drying the mould (36) coated with a layer of latex (50), - in a third phase, rolling the upper cylindrical end of the layer of latex (50) on itself by hand in the direction of the back wall (32) to obtain the rolled hem (28), - in a fourth phase, removing the diaphragm (26) from the mould after rinsing with hot water, followed by drying the drying operation in the oven.
4. The manufacturing process according to claim 3, characterized in that a colouring agent is introduced into the liquid latex (48) before the mould (36) is plunged into the recipient (46).
5. A device for implementation of the manufacturing process according to one of the claims 3 or 4, and comprising a dipping mould (36) with a cylindrical imprint corresponding to the diameter of the diaphragm, characterized in that the bottom end of the mould (36) comprises in addition:
- an annular groove (40) for holding the rolled edge of the rolled hem (28), - a rounded peripheral boss (42) extending the groove (40) axially up to a cylindrical end washer (44) to obtain said annular cavity (30).
- an annular groove (40) for holding the rolled edge of the rolled hem (28), - a rounded peripheral boss (42) extending the groove (40) axially up to a cylindrical end washer (44) to obtain said annular cavity (30).
6. The device for implementation according to claim 5, characterized in that the diameter of the washer (44) is slightly greater than the diameter of the mould (36).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9709533A FR2766351A1 (en) | 1997-07-22 | 1997-07-22 | PROTECTIVE DISC FOR THE MEMBRANE OF A STETHOSCOPE, FOR SINGLE USE |
| FR97/09533 | 1997-07-22 | ||
| PCT/FR1998/001610 WO1999004693A1 (en) | 1997-07-22 | 1998-07-21 | Diaphragm for hygienic protection of a medical stethoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2298485A1 true CA2298485A1 (en) | 1999-02-04 |
Family
ID=9509672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002298485A Abandoned CA2298485A1 (en) | 1997-07-22 | 1998-07-21 | Diaphragm for hygienic protection of a medical stethoscope |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0998221A1 (en) |
| JP (1) | JP2001510699A (en) |
| CN (1) | CN1265011A (en) |
| AU (1) | AU8866098A (en) |
| CA (1) | CA2298485A1 (en) |
| FR (1) | FR2766351A1 (en) |
| WO (1) | WO1999004693A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019094343A1 (en) * | 2017-11-10 | 2019-05-16 | Vitalchains Corporation | Diaphragm set for stethoscope and disposable capsule having the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2803187B1 (en) | 2000-01-04 | 2002-08-30 | Massioui Youssef El | PROTECTIVE DEVICE FOR MEDICAL INSTRUMENTS SUCH AS STETHOSCOPES |
| GB2598323A (en) * | 2020-08-25 | 2022-03-02 | Agahi Arjang | A medical instrument cover dispensing apparatus and a cover storage arrangement and cover for use therewith |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461368A (en) * | 1982-04-15 | 1984-07-24 | Plourde R Gilles | Diaphragm cover for a stethoscope |
| US5128088A (en) * | 1990-08-14 | 1992-07-07 | Hollister Incorporated | Continuous method for making adhesive-lined male external catheters |
| US5365023A (en) * | 1993-05-13 | 1994-11-15 | Lawton Gary P | Elastomeric stethoscope cover |
| GB9418688D0 (en) * | 1994-09-16 | 1994-11-02 | Smith & Nephew | Elastomeric articles |
| FR2734704B1 (en) | 1995-05-31 | 1997-11-14 | Tondeur Monique Rothan | DEVICE FOR PROTECTING THE MEMBRANE OF A MEDICAL STETHOSCOPE |
-
1997
- 1997-07-22 FR FR9709533A patent/FR2766351A1/en active Pending
-
1998
- 1998-07-21 EP EP98940303A patent/EP0998221A1/en not_active Withdrawn
- 1998-07-21 CA CA002298485A patent/CA2298485A1/en not_active Abandoned
- 1998-07-21 WO PCT/FR1998/001610 patent/WO1999004693A1/en not_active Application Discontinuation
- 1998-07-21 CN CN98807533A patent/CN1265011A/en active Pending
- 1998-07-21 AU AU88660/98A patent/AU8866098A/en not_active Abandoned
- 1998-07-21 JP JP2000503763A patent/JP2001510699A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019094343A1 (en) * | 2017-11-10 | 2019-05-16 | Vitalchains Corporation | Diaphragm set for stethoscope and disposable capsule having the same |
| TWI707665B (en) * | 2017-11-10 | 2020-10-21 | 美商維托臣股份有限公司 | Diaphragm set for stethoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001510699A (en) | 2001-08-07 |
| FR2766351A1 (en) | 1999-01-29 |
| WO1999004693A1 (en) | 1999-02-04 |
| AU8866098A (en) | 1999-02-16 |
| EP0998221A1 (en) | 2000-05-10 |
| CN1265011A (en) | 2000-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |